Drag&Drop your Whatever.ini Presets (from “Manage Presets” in the UI) to this BAT file to convert v1 to v2.0 format. Ensure converted presets can be correctly loaded on the UI, then, you can remove backups at once in “Date created” sort order.

Requires the main one. A tiny xEdit Script to manage another independent list of Presets by another Hotkey.
You can copy this to manage as many different lists of Presets as you like.
The main script version does not matter.

Requires utdnLib >= 2.8.0.
Change: Replace {…} with <…> for variables like {EditorID} with <EditorID>. I misunderstood. {} is available in filename.
Sorry for inconvenience :(
I added a batfile converter in Miscellaneous files.
See Changelogs.

Requires utdnLib >= 2.7.0.

Sample Presets for the main one.
Put the contents into the folder Edit Scripts/.
It's NOT recommended to edit the presets directly. Instead, please copy the presets by "Save As..." on the UI, in case this sample set is updated.